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使用"孔隙制造,活性物质填充,密集化"策略建造具有高质量负载的木材-PANI超级电容器
Rongrong Si1, Honggang Luo2, Junwen Pu1
1Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
Journal of colloid and interface science
|February 9, 2024
概括
研究人员开发了一种简单的方法来制造高性能木材超级电容电极. 这一策略增强了导电聚合物的均性,并为先进的储能设备增加了质量负载.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 可再生材料可再生材料
背景情况:
- 木材导电聚合物复合材料对超级电容电极有希望.
- 挑战包括实现统一的导电材料分布和对木质基板的高质量负荷.
研究的目的:
- 开发一种易于准备木质超级电容电极的简单策略,以提高均性和高质量负载.
- 为了研究这些新型木质电极的电化学性能和稳定性.
主要方法:
- 采用了三步策略,包括孔隙制造 (ZnCl2处理),活性物质填充 (聚氨的现场聚合) 和密集 (自我收缩).
- 脱的木材被ZnCl2处理以增加孔隙性并促进氨酸分子的透.
- 在木结构中的聚氨酸 (PANI) 现场聚合确保了同质的分布和与木纤维的纠.
主要成果:
- 一个具有高质量负荷 (41.4%重量%) 和优异均性的木质电极 (RWP2) 被成功制备.
- RWP2表现出高的电化学性能,电容2328.9mF/cm2在1mA/cm2和超过5000个周期 (89.3%的保留) 的显著稳定性.
- 一个对称超级电容器装置 (RWP2//RWP2 SSC) 在功率密度为250 μw/cm2的情况下,实现了164.24 μwh/cm2的能量密度.
结论:
- 拟议的战略为制造高性能木制超级电容电极提供了一种简单而通用的方法.
- 这种方法显著改善了导电材料的负载和均性,为多功能木材储能应用铺平了道路.
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